html{
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'Pingfang SC', 'Microsoft Yahei', 'WenQuanYi Micro Hei', sans-serif;
    background-color: #f5f5f5;
    color: #5b6b73;
    box-sizing: border-box;
}

body{
    height:100%;
    width:100%;
    min-width: 1024px;
}

h1{
    padding: 0px;
    margin: 0px;
}

.fl{
    float: left;
}
.fr{
    float: right;
}


